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Recognised as Colour

#2D477F

  • #2D477F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#2D477F is a blue with RGB values 45, 71, 127 and HSL 221°, 48%, 34%. It is a dark colour, so white text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#2D477F#2D477F
HEX#2D477F
RGBrgb(45, 71, 127)
RGB (0–1)0.1765, 0.2784, 0.498
RGB percentages17.6%, 27.8%, 49.8%
HSLhsl(221, 47.7%, 33.7%)
HSV / HSBhsv(221, 64.6%, 49.8%)
CMYK64.6%, 44.1%, 0%, 50.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,967,423
CSS custom property--colour: #2D477F;

Brightness & contrast

Relative luminance0.06597WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.05:1
Contrast with white9.05:1WCAG normal text: AAA
Contrast with black2.32:1WCAG normal text: Fail
Greyscale equivalent#464646
Inverted#D2B880

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2E4D81no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#21457Eno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#00545Cno blue cones; rare, and affects men and women equally; ΔE 36.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.05:1WCAG large text: AAA
Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.4Steel blue · ΔE 25.5Midnight blue · ΔE 30.9Cornflower blue · ΔE 34.3Slate grey · ΔE 34.5Rebecca purple · ΔE 36
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7F652D
Analogous#2D707F, #3C2D7F
Triadic#7F2D47, #477F2D
Split complementary#7F3C2D, #707F2D
Tetradic#7F2D70, #7F652D, #2D7F3C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CB0DC
Lighter +30%#7692CF
Lighter +20%#5174C1
Lighter +10%#3A5CA5
Darker −10%#203259
Darker −20%#121D34
Darker −30%#05080E
Darker −40%#000000
More saturated +25%#183F94
Less saturated −25%#434F6A

Channel breakdown

R45
G71
B127
Red45 (17.6%)
Green71 (27.8%)
Blue127 (49.8%)
Hue220.98°
Saturation (HSL)47.67%
Lightness33.73%
Dominant channelBlue
Hex per channelR 2D · G 47 · B 7F

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Every value on this page was computed from “2d477f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.